DST Triangle
Speed =
distance / time
speed and direction of a moving object
velocity
the unit of force
Newton
Newton's 1st law
inertia
an object slows down
negative acceleration
Time =
distance / speed
vector
the vector sum of all the forces that act on an object
net force
says that an object will not change its motion unless acted upon by an unbalanced force
Newton's 1st law
an object speeds up
positive acceleration
distance =
speed x time
speed at an instant in time
instantaneous speed
the force of attraction between All objects in the universe
gravity
if an object has more mass, it accelerates at a lower rate because it has more inertia
Newton's 2nd law
constant or no speed
zero acceleration
what speed is a car traveling if it travels 400 meters in 20 seconds
20 m/s
speed for the entire duration an object is moving
average speed
the larger the mass of an object the larger its
gravitational force
Every action has an equal and opposite reaction
Newton's 3rd law
the measurement of the change in velocity during a period of time
acceleration
how far can you go at 3 m/s in 15 s?
45 meters
constant speed
how much an object is pulling on you
gravity
Forces always come in pairs: when you push on a wall, the wall pushes back
Newton's 3rd law
acceleration can be three things:
a change in speed
a change in direction
a change in speed and direction